Home / 2,158.80-2,977.44-1,450.56

Finding the Fourth Proportional to 2,158.80, 2,977.44 and 1,450.56

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Solution

The fourth proportional to 2,158.80, 2,977.44 and 1,450.56 is: 2,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.80 : 2,977.44 = 1,450.56 : x
  2. Step 2: Convert to fraction form
    2,158.80/2,977.44 = 1,450.56/x
  3. Step 3: Cross multiply
    2,158.80x = 2,977.44 × 1,450.56
  4. Step 4: Simplify right side
    2,158.80x = 4,318,955.37
  5. Step 5: Solve for x
    x = 4,318,955.37/2,158.80
  6. Step 6: Final answer
    x = 2,000.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.